EP1789961B1 - Support d'enregistrement, procede et appareil pour enregistrer des donnees dans ce support d'enregistrement - Google Patents

Support d'enregistrement, procede et appareil pour enregistrer des donnees dans ce support d'enregistrement Download PDF

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Publication number
EP1789961B1
EP1789961B1 EP05787113A EP05787113A EP1789961B1 EP 1789961 B1 EP1789961 B1 EP 1789961B1 EP 05787113 A EP05787113 A EP 05787113A EP 05787113 A EP05787113 A EP 05787113A EP 1789961 B1 EP1789961 B1 EP 1789961B1
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EP
European Patent Office
Prior art keywords
area
opc
data
recording medium
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP05787113A
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German (de)
English (en)
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EP1789961A1 (fr
Inventor
Sang Woon Suh
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LG Electronics Inc
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LG Electronics Inc
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Publication date
Priority claimed from KR1020050022809A external-priority patent/KR101053616B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1789961A1 publication Critical patent/EP1789961A1/fr
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Publication of EP1789961B1 publication Critical patent/EP1789961B1/fr
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1267—Power calibration
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1275—Calibration data, e.g. specific training patterns for adjusting equalizer settings or other recording or playback parameters
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
    • G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
    • G11B2220/237—Multilayer discs, i.e. multiple recording layers accessed from the same side having exactly two recording layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs

Definitions

  • the present invention relates to a recording medium, and more particularly to a physical structure efficiently used when manufacturing the recording medium, and a method and apparatus for recording data in the recording medium using the physical structure.
  • an optical disc acting as a recording medium capable of recording a large amount of data therein there has been widely used an optical disc acting as a recording medium capable of recording a large amount of data therein.
  • a high-density optical recording medium capable of recording/storing high-quality video data and high-quality audio data for a long period of time, for example, a Blu-ray Disc (BD).
  • BD Blu-ray Disc
  • the BD based on the next-generation recording medium technique has been considered to be the next-generation optical recording solution capable of storing much more data than a conventional DVD.
  • many developers have conducted intensive research into the international standard technical specification associated with the BD along with those of other digital devices.
  • US-A-2004/174793 describes a method and apparatus for recording on an optical recording medium, including the recording of management information as a standard for the write-once Blu-ray disc, wherein the management information is recorded in a management area of the disc, such as a temporary defect management area (TDMA), and includes record status information and update information.
  • TDMA temporary defect management area
  • US-A-2001/040846 describes an optical disc having a power calibration area for calibrating the power of a data recording laser beam, the power calibration area being provided at an inner peripheral part of the disc and has test areas and count area, the test areas being provided to accomplish trial writing of data, the count areas being provided to record data representing the use condition of the test areas.
  • the present invention is directed to a recording medium, and a method and apparatus for recording data in the recording medium that substantially obviate one or more problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide a physical structure suitable for a recording medium such as a BD, and a method and apparatus for recording data in the recording medium using the physical structure.
  • a recording medium and a method for recording data as defined in the claims includes a test area contained in at least one of the inner area and the outer area, and a management area for storing a position information indicating a position available for testing in the test area, wherein the position information includes a start position of first data unit available for testing and a position of second data unit available for testing, wherein one or more second data units comprise first data unit.
  • a method for recording data in a recording medium includes the steps of a) reading a position information of a test area assigned to the recording medium, the position information being included in management information required for recording and/or reproducing of the recording medium, wherein the position information indicates a position available for testing and includes a start position of first data unit available for testing and a position of second data unit available for testing, wherein one or more second data units comprise first data unit, b) performing an Optimum Power Control (OPC) process for calculating an optimum write power in the test area recognized by the position information, and c) recording data in the recording medium using the calculated optimum write power.
  • OPC Optimum Power Control
  • An apparatus for recording data in a recording medium includes a pickup unit for reading management information including a position information stored in management area, and recording data in the recording medium, wherein the position information indicates a position available for testing and includes a start position of first data unit available for testing and a position of second data unit available for testing, wherein one or more second data units comprise first data unit, and a controller for performing an Optimum Power Control (OPC) process capable of calculating an optimum write power in a test area recognized by the position information, and controlling the pickup unit to record data in the recording medium based on the calculated optimum write power.
  • OPC Optimum Power Control
  • a recording medium for use in the present invention is indicative of all recordable mediums, for example, an optical disc, and a magnetic tape, etc., according to various recording schemes.
  • the optical disc such as a BD
  • the optical disc will hereinafter be exemplarily used as the above-mentioned recording medium in the present invention. It should be noted that technical ideas of the present invention can be applied to other recording mediums without departing from the scope and spirit of the invention.
  • Optimum Power Control (OPC) area is indicative of a predetermined area assigned to perform an OPC process in the recording medium.
  • Optimum Power Control (OPC) is indicative of a predetermined process capable of calculating an optimum write power when recording data in a recordable optical disc.
  • the optical recording/reproducing device if the optical disc is loaded in a specific optical recording/reproducing device, the optical recording/reproducing device repeatedly performs a predetermined process for recording data in the OPC area of the optical disc, and reproducing the recorded data, such that it calculates an optimum write power applicable to the optical disc. Thereafter, the optical recording/reproducing device uses the calculated optimum write power when recording data in the optical disc. Therefore, the OPC area is required for the recordable optical disc.
  • Drive Calibration Zone (DCZ) area is indicative of a specific area used by an optical recording/reproducing device (or a drive) in the recording medium, and can perform not only the OPC process but also a variety of tests required for the optical recording/reproducing device.
  • the OPC area and the DCZ area are available for the OPC process.
  • the OPC area and the DCZ area are generally referred to as test zone or test area. It should be noted that the OPC performing in the OPC area can be applied even to the DCZ area.
  • FIG. 1 is a single-layered optical disc structure capable of recording data therein according to the present invention.
  • a write-once single-layered BD-R capable of recording data therein is shown in FIG. 1 .
  • the optical disc sequentially includes an inner area, a data area, and an outer area on the basis of a disc inner area.
  • a specific area contained in each of the inner area and the outer area is used as either a record area for recording disc management information or a test area.
  • the data area records actual user data therein.
  • the inner area includes a PIC (Permanent Information & Control data) area, an OPC area, and two information areas (i.e., info-areas) IN1 and IN2.
  • the PIC area records disc management information as an embossed HFM (High Frequency Modulated) signal.
  • the OPC area serving as a test area is adapted to perform the OPC process.
  • the info-areas IN1 and IN2 record various disc management information including a Defect Management Area (DMA).
  • DMA Defect Management Area
  • a write-once BD-R includes a Temporary Disc Management Area (TDMA) adjacent to the OPC area.
  • TDMA Temporary Disc Management Area
  • the outer area includes two other info-areas IN3 and IN4, a DCZ (Drive Calibration Zone) area, and a protection area (Pr3).
  • a DCZ Drive Calibration Zone
  • Pr3 Protection area
  • the BD-R for recording data therein records data in a groove part in a recording layer composed of a land part and the groove part.
  • the groove part is composed of an HFM-groove and a wobbled groove.
  • the wobbled groove is configured in the form of a wobbled shape using a modulation method associated with a sinusoidal wave in a groove contained in a recording layer.
  • the optical recording/reproducing device can read address information (i.e., ADIP: Address In Pre-groove) of a corresponding groove and general disc information using the above-mentioned wobbled shape.
  • ADIP Address In Pre-groove
  • FIG. 2 is a write-once dual-layered optical disc structure capable of recording data therein according to the present invention.
  • Layer0 (L0) one of two recording layers is referred to as a “Layer0 (L0)” layer, and the other one is referred to as a “Layer1 (L1)” layer.
  • individual recording layers have the same structure in the write-once dual-layered BD-R according to the present invention.
  • the inner area of the recording layer L0 includes the OPC area as a test area, and the inter area of the recording layer L1 includes the DCZ area as a test area.
  • the optical recording/reproducing device calculates an optimum write power using the OPC process in the OPC area and/or the DCZ area. In other words, if the disc is loaded in the optical recording/reproducing device, the optical recording/reproducing device performs the recording/reproducing operation as in the optical disc structure.
  • An area for storing management information of the test area will hereinafter be described.
  • FIG. 3 is a conceptual diagram illustrating a method for recording management information in a recordable optical disc.
  • a Temporary DMA (TDMA) is included in the inner area and/or the outer area of the optical disc, and management information for managing the OPC area and the DCZ area is recorded in the TDMA.
  • the write-once recordable disc such as a BD-R records the management information in the TDMA.
  • the management information of the OPC area and the DCZ area may include information indicative of positions of the OPC area and the DCZ area for every recording layer of the disc, for example, start address information and/or end address information (i.e., "OPCs location info” and “DCZs location info”), and information indicative of current available positions in individual OPC and DCZ areas (i.e., "Next available PSN in each OPC” and "Next available PSN in each DCZ").
  • the optical recording/reproducing device reads management information of the OPC area and the DCZ area contained in the TDMA.
  • the optical recording/reproducing device recognizes position information of the OPC area contained in the disc and other position information of the available OPC area, and recognizes position information of the DCZ area and other position information of the available DCZ area, such that it can perform the OPC process at the recognized positions.
  • the management information be recorded in the TDDS contained in the TDMA.
  • management information associated with the OPC area and the DCZ area and available position information of a test area contained in the management information are equally applied to all optical discs shown in FIGS. 1 ⁇ 3 .
  • the above-mentioned description shows a specific case in which the DCZ area is included in the optical disc acting as a recording medium, it should be noted that the present invention can also be applied to not only a recording medium including the OPC and
  • DCZ areas acting as test areas but also another recording medium including only the OPC process acting as the test area without departing from the spirit or scope of the inventions.
  • FIG. 4 is a conceptual diagram illustrating a method for performing an OPC process according to the present invention.
  • a recording-medium tracking direction of the optical recording/reproducing device in the recording medium is determined to be a Physical Sector Number (PSN) increasing direction along which the PSN is increased.
  • the OPC-process performing direction in the recording medium is determined to be a PSN reduction direction along which the PSN is reduced in the direction from a high PSN to a low PSN.
  • a recording direction after the OPC process is determined to be a PSN increasing direction from a low PSN to a high PSN in the same manner as in the tracking direction.
  • a unit for recording data in a data area of the recording medium is a 1-cluster unit, and a unit for recording data by performing the OPC process in the OPC area may act as a 1-cluster unit.
  • a data record area acquired by the OPC process may be less than the 1 cluster, and may also be larger than the 1 cluster.
  • AUN Address Unit Number
  • the AUN acts as a unit having a range less than that of the cluster, and a single cluster includes 16 AUNs.
  • a single OPC process performing length is selected by the optical recording/reproducing device, and is not limited by the number of physical clusters.
  • the BD-R has a limited OPC area and cannot re-use a once-used OPC area, such that there is a need for the BD-R to maximally use the limited OPC area.
  • FIG. 4 shows a specific case where three OPC processes are performed.
  • FIG. 4 shows a plurality of parts, each of which performs the OPC process, and a plurality of OPC markers for identifying individual parts.
  • a part for performing a first OPC process is denoted by "Cluster #P+1", and includes a first part denoted by “OPC #M” and a second part denoted by “OPC Marker #M”.
  • the "OPC #M” part records data therein, and the "OPC Marker #M” part identifies the "OPC #M” part.
  • a part for performing a second OPC process includes "Cluster #P", “Cluster #N", and some parts of "Cluster #N-1".
  • a part denoted by “OPC #M+1” records data therein, and the "OPC Marker #M+1" identifies the "OPC #M+1" part.
  • a part for performing a third OPC process is composed of some parts of the "Cluster #N-1" part.
  • the part for performing the third OPC process includes "OPC #M+2" and "OPC Marker #M+2".
  • the "OPC #M+2" part records data therein, and the "OPC Marker #M+2" part identifies the "OPC #M+2" part.
  • "Cluster #N-2" and some parts of the "Cluster #N-1" part positioned prior to the "OPC Marker #M+2" part serve as unused cluster areas.
  • the distance between two successive OPC markers from among OPC markers capable of identifying data record areas associated with the OPC process is equal to or less than a predetermined distance corresponding to 16 clusters.
  • the OPC marker in order to satisfy the above-mentioned requirements in the OPC process requiring at least 16 clusters, the OPC marker must be inserted into the OPC process.
  • the above-mentioned OPC marker must have a predetermined length corresponding to at least 868 NWLs (Nominal Wobble Lengths).
  • the "OPC #M” part shown in FIG. 4 occupies a single cluster (i.e., 1 cluster) in the OPC area.
  • the "OPC #M+1" part occupies a predetermined area larger than the 1 cluster in the OPC area.
  • the "OPC #M+2" part occupies a predetermined area less than the 1 cluster in the OPC area. It can be understood that the OPC process is performed in AUN units instead of the 1 cluster unit.
  • the "OPC #M+2" part recorded by the last OPC process occupies a predetermined area less than the 1 cluster in the OPC area, and the part "A" indicative of some parts of the cluster #N-1" part remains unused.
  • a TDDS area contained in the TDMA area storing OPC management information stores "Next Available PSN of Test Zone" information.
  • the "Next Available PSN of Test Zone” information” information stored in the TDDS area is indicative of a start position of a cluster capable of performing the next OPC process, and may also be denoted by "Next Available first PSN of Test Zone”.
  • the PSN is not equal to an address recorded in a disc acting as an actual recording medium, and the 1 cluster includes 32 physical sectors, such that the PSN of actually-available physical sectors is indicative of 32. A long period of time is required for searching for the actually-available physical sectors using wobbles of the disc, resulting in an increased OPC process time.
  • the PSN of the 1-cluster start position is mapped to an actual wobble physical address due to Least Significant Byte (LSB) - 5 bits, each of which is zero, such that it can be made available.
  • LSB Least Significant Byte
  • the optical recording/reproducing device can recognize the "Next Available PSN of Test Zone" information indicative of an available address stored in cluster units on the basis of management information of the recording medium, but it cannot recognize how much information of the last cluster is used, i.e., how much information of the "Cluster #N-1" part is used.
  • the present invention further records "Next Available PSN of Test Zone” information and specific information in the TDDS contained in the TDMA area capable of storing management information in a recording medium.
  • the "Next Available PSN of Test Zone” information and the specific information are further recorded in the TDDS area as more detailed unit information less than the cluster unit.
  • the "Next Available PSN of Test Zone” information is indicative of the first PSN of the next available PSNs recorded in cluster units in association with the OPC area used during the OPC process.
  • the above-mentioned specific information indicates how much information of the last cluster from among OPC-processed clusters is used.
  • the above-mentioned optical recording/reproducing device can use the OPC area using the above-mentioned specific information indicating how much information of the last cluster from among OPC-processed clusters is used, when another optical recording/reproducing device performs the OPC process, such that it can maximally use a limited OPC area.
  • FIGS. 5a ⁇ 5c A variety of preferred embodiments shown in FIGS. 5a ⁇ 5c will hereinafter be described.
  • FIG. 5a shows a TDDS structure of a recording medium in accordance with a first preferred embodiment of the present invention.
  • Position information of the next available test area from among various management information recorded in the TDDS after performing the OPC process is shown in FIG. 5a .
  • information of a range less than that of the cluster unit is also recorded in the TDDS, such that the OPC process can be performed maximally using the unused area of the OPC area acting as a test area.
  • the number of AUNs used by the last cluster or the AUN address is recorded in the TDDS when the OPC process is performed in a predetermined area used by a current OPC process.
  • the optical recording/reproducing device reads the number of AUNs used by the last cluster or an AUN address used by the last cluster when the OPC process is performed at the next available position information from among various management information recorded in the TDDS, and uses the number of AUNs and the AUN address, such that it can prevent the OPC area from being damaged during the next OPC process.
  • the 1 cluster includes 16 AUNs.
  • FIG. 5b shows a TDDS structure of a recording medium in accordance with a second preferred embodiment of the present invention.
  • Position information of the next available test area from among various management information recorded in the TDDS after performing the OPC process is shown in FIG. 5b .
  • information of a range less than that of the cluster unit is also recorded in the TDDS, such that the OPC process can be performed maximally using the unused area of the OPC area acting as a test area.
  • the number of Sync frames used by the last cluster is recorded in the TDDS when the OPC process is performed in a predetermined area used by a current OPC process.
  • the optical recording/reproducing device reads the number of sync frames used by the last cluster when the OPC process is performed at the position information from among various management information recorded in the TDDS, and uses the number of AUNs and the AUN address, such that it can prevent the OPC area from being damaged during the new OPC process.
  • the 1 cluster includes 498 sync frames.
  • FIG. 5c shows a TDDS structure of a recording medium in accordance with a third preferred embodiment of the present invention.
  • the present invention uses the unused area of the TDDS along with "Next Available PSN Test Zone on L0" and "Next Available PSN Test Zone on L1", which are indicative of addresses stored in cluster units, after performing the OPC process, and performs the OPC process using the unused area of the TDDS structure.
  • the present invention records either the number of sectors used by the last cluster during the current OPC process or a sector address in the TDDS. In this case, the number of sectors used by the last cluster and the sector address are contained in the above-mentioned specific information indicating how much information of the last cluster is used when the OPC process is performed in an area of the current OPC process.
  • the third preferred embodiment shown in FIG. 5c has the same effect as those of FIGS. 5a ⁇ 5b , and the 1 cluster includes 32 sectors.
  • the TDDS structure shown in FIGS. 5a ⁇ 5c updates management information including position information whenever the OPC process is performed, such that new position information is recorded in the TDDS after the OPC process is performed.
  • FIGS. 5a ⁇ 5c is similar to the OPC marker in FIG.4 , but it may be different from the OPC marker with respect to information representing address or a number of AUN, sync-frame, or sector, each of which are sub unit of cluster.
  • FIG. 6 shows the relationship among the 1 cluster, the AUN, the sync-frame, and the sector according to the present invention.
  • the 1 cluster indicative of some parts of the OPC area is shown in FIG. 6 .
  • the 1 cluster includes 13944 wobbles.
  • the 1 cluster includes 3 ADIP words.
  • Each ADIP word is composed of three ADIP words, i.e., ADIP word 0, ADIP word 1, and ADIP word 2.
  • Each of the ADIP words includes 83 ADIP units.
  • the three ADIP words are equal to 249 ADIP units.
  • Each of the ADIP units includes two sync-frames.
  • the 249 ADIP unit is equal to 498 sync-frames. Therefore, the 1 cluster corresponds to 498 sync-frames.
  • the 1 cluster includes 16 AUNs.
  • a single AUN corresponds to the length of 868 wobbles, and also corresponds to 15.5 ADIP unit.
  • the wobble is indicative of an NWL (Nominal Wobble Length).
  • the 1 cluster includes 32 sectors.
  • the PSN Physical Sector Number
  • Two sectors corresponds to a single AUN.
  • the 1 cluster is equal to 16 AUNs, 32 sectors, and 498 sync-frames.
  • an area recorded by the OPC process in FIG. 6 is denoted by
  • next available cluster information is recorded in the next available position information of the test area contained in the TDDS storing management information of a recording medium, and at the same time specific information (e.g., four AUNs, eight sectors, and 124.5 sync-frames) associated with the last cluster is recorded in the above-mentioned next available position information of the TDDS.
  • specific information e.g., four AUNs, eight sectors, and 124.5 sync-frames
  • the AUN information and the sector address information can be recorded in the TDDS using the above-mentioned method.
  • FIG. 7 is a block diagram illustrating an optical recording/reproducing device according to the present invention.
  • the optical recording/reproducing device includes a recording/reproducing unit 20 for recording/reproducing data in/from an optical disc, and a controller 12 for controlling the recording/reproducing unit 20.
  • the recording/reproducing unit 20 includes a pickup unit 11, a signal processor 13, a servo unit 14, a memory 15, and a microprocessor 16.
  • the pickup unit 11 directly records data in the optical disc, or reads data recorded in the optical disc.
  • the signal processor 13 receives a signal read from the pickup unit 11, restores the received signal to a desired signal value, or modulates a signal to be recorded into another signal recorded in the optical disc, such that it transmits the recovered or modulated result.
  • the servo unit 14 controls operations of the pickup unit 11, such that it correctly reads a desired signal from the optical disc, and correctly records the signal in the optical disc.
  • the memory 15 temporarily stores not only management information but also data.
  • the microprocessor 16 controls overall operations of the above-mentioned components.
  • the above-mentioned recording/reproducing unit 20 performs a predetermined test in a test area of a recording medium, calculates an optimum write power, and records the calculated optimum write power.
  • the optical recording/reproducing device composed of only the recording/reproducing unit 20 is referred to as a drive, and is generally used as a peripheral device of a computer.
  • the controller 12 controls operations of overall constituent components.
  • the controller 12 refers to a user command by interfacing with a user, and transmits a recording/reproducing command capable of recording/reproducing data in/from the optical disc to the recording/reproducing unit 20.
  • the decoder 17 decodes a signal read from the optical disc upon receiving a control signal from the controller 12, restores the decoded signal to desired information, and transmits the restored signal to the user.
  • the encoder 18 receives a control signal from the controller 12 to record a desired signal in the optical disc, converts the received signal into a specific-format signal (e.g., an MPEG2 transport stream), and transmits the specific-format signal to the signal processor 13.
  • a specific-format signal e.g., an MPEG2 transport stream
  • the memory 15 reads available position information of a test area assigned to the inner area and the outer area of the recording medium from the TDDS shown in FIGS. 5a ⁇ 5c , and temporarily stores the read position information.
  • the microprocessor 16 performs the OPC process for calculating an optimum write power in a test area recognized by the read position information stored in the memory 15, and controls data to be recorded in the recording medium according to a recording command of the controller 12 at the calculated optimum write power.
  • the position information recorded in the TDDS is set to at least one of the AUN information, the sync-frame information, and the PSN information.
  • FIGS. 8 ⁇ 9 are flow charts illustrating a method for recording data in a recording medium using the optical recording/reproducing device according to the present invention.
  • the microprocessor 16 of the recording/reproducing unit 20 controls the pickup unit 11 using the servo unit 14, such that it reads available position information of a test area from the next available position information (e.g., "Next Available PSN of OPC", "OPC of position information used by the last cluster during the current OPC Process", “Next Available PSN of DCZ”, and "DCZ of position information used by the last cluster during the current OPC Process") contained in the OPC-area management information and/or the DCZ-area management information at step S11, and temporarily stores the read position information in the memory 15.
  • the OPC-area management information and the DCZ-area management information are recorded in the TDDS of the TDMA of the loaded disc.
  • the microprocessor 16 recognizes a correct position at which the OPC is to be performed by referring to the management information at step S12.
  • the microprocessor 16 performs the OPC process at the position recognized by the management information upon receipt of an OPC process command. Specifically, the OPC process is performed in the OPC area and the DCZ area, such that the optimum write power to be applied to the loaded optical disc is calculated in the OPC area and the DCZ area, respectively, at step S13 and S15.
  • the "Next Available PSN of OPC” information, the "OPC of position information used by the last cluster during the current OPC Process” information, the “Next Available PSN of DCZ” information, and the "DCZ of position information used by the last cluster during the current OPC Process” from among various management information associated with the next OPC process position are updated such that they are used as the next available position information at steps S14 and S16.
  • a recording medium which includes the OPC area other than the DCZ area need not the above steps S15 and S16.
  • the recording/reproducing unit 20 Upon receiving a recording command of a corresponding disc from the controller 12, the recording/reproducing unit 20 performs the recording command using the calculated optimum write power, and a detailed description thereof will be described with reference to FIG. 9 .
  • the microprocessor 16 contained in the recording/reproducing unit 20 receives the recording command from the controller 12 at step S21.
  • the recording command is composed of recording data and position information to be recorded in the disc at step S21. Therefore, the microprocessor 16 selects an optimum write power, at which data is to be recorded, on the basis of recording position information contained in the recording command, and determines whether the recording position is contained in the inner circumstance of the disc at step S22. If the recording position is in the vicinity of the disc inner area, the microprocessor 16 records data at the optimum write power calculated in the OPC area (i.e., the write power calculated at step S13) at step S23. If the recording position is in the vicinity of the disc outer area, the microprocessor 16 records data at the optimum write power calculated in the DCZ area (i.e., the write power calculated at step S15) at step S24.
  • the microprocessor 16 uses the optimum write power calculated in the OPC area contained in the inner area. If data is recorded in the vicinity of the outer area of the data area of the disc, the microprocessor 16 uses the optimum write power calculated in the DCZ area. Therefore, the present invention can properly use the optimum write power according to data recording positions.
  • the first optimum write power applied in the vicinity of the inner area of the disc is acquired by the result calculated in the OPC area
  • the second optimum write power applied in the vicinity of the outer area of the disc is acquired by the result calculated in the DCZ area, resulting in the prevention of a data record error.
  • the data record error may occur when the same write power is applied to overall data areas during a predetermined data record time during which data is recorded in a high-density disc such as a BD at high speed.
  • the first optimum write power calculated in the OPC area and the second optimum write power calculated in the DCZ area are not applied to the example without any change, but individual weights are applied to the first and second optimum write powers according to data recording positions to determine the last write power. Otherwise, if the data recording position is in the vicinity of the center part of the data area, a mean value of the calculated optimum write powers can also be applied to the present invention.
  • a recording medium, and a method and apparatus for recording data in the recording medium according to the present invention can apply the recording medium a method for manufacturing a BD, and can effectively perform a disc test process and data recording/reproducing operations.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Head (AREA)

Claims (18)

  1. Support d'enregistrement optique inscriptible une seule fois comprenant une zone intérieure, une zone de données et une zone extérieure, le support d'enregistrement comprend :
    une zone de test contenue dans au moins une zone parmi la zone intérieure et la zone extérieure, la zone de test étant destinée à tester une puissance d'écriture optimum ; et
    une zone de gestion stockant une information de position indiquant une position disponible pour le test dans la zone de test, l'information de position comprenant une position de début d'une première unité de données disponible pour le test et une position d'une seconde unité de données associée à la première unité de données et
    disponible pour le test, le test étant effectué dans la seconde unité de données,
    dans lequel la première unité de données comprend au moins deux secondes unités de données, et la seconde unité de données est au moins une unité parmi une unité de numéro d'unité d'adresse (AUN), une unité de synchronisation de trame et une unité de secteur.
  2. Support d'enregistrement selon la revendication 1, dans lequel la zone de test contenue dans la zone intérieure comprend une zone de commande de puissance optimum (OPC).
  3. Support d'enregistrement selon la revendication 1, dans lequel la zone de gestion est une zone de gestion de disque temporaire (TDMA).
  4. Support d'enregistrement selon la revendication 3, dans lequel l'information de position est stockée dans une structure de définition de disque temporaire (TDDS) contenue dans la zone de gestion de disque temporaire (TDMA).
  5. Support d'enregistrement selon la revendication 4, dans lequel l'information dans la structure de définition de disque temporaire (TDDS) est mise à jour et stockée.
  6. Support d'enregistrement selon la revendication 1, dans lequel l'information de position comprend une information de position d'une dernière première unité de données dans laquelle un processus de commande de puissance optimum (OPC) est effectué.
  7. Support d'enregistrement selon la revendication 1, dans lequel l'information de position comprend une position de début d'une prochaine première unité de données disponible, dans lequel la première unité de données est un groupe.
  8. Support d'enregistrement selon la revendication 7, dans lequel la position de début de la prochaine première unité de données disponible comprend un premier numéro de secteur physique (PSN) d'un groupe correspondant.
  9. Support d'enregistrement selon la revendication 1, dans lequel la zone de gestion stocke en outre une information de position de la zone de test assignée à la couche d'enregistrement.
  10. Procédé pour enregistrer des données dans un support d'enregistrement optique inscriptible une seule fois, le procédé comprend les étapes consistant à :
    a) lire une information de position d'une zone de test assignée au support d'enregistrement, la zone de test étant destinée à tester une puissance d'écriture optimum, l'information de position étant comprise dans des informations de gestion requises pour l'enregistrement et/ou la reproduction du support d' enregistrement ;
    b) effectuer un processus de commande de puissance optimum (OPC) pour calculer une puissance d'écriture optimum dans la zone de test reconnue par l'information de position ; et
    c) enregistrer des données dans le support d'enregistrement en utilisant la puissance d'écriture optimum calculée,
    dans lequel l'information de position indique une position disponible pour le test et comprend une position de début d'une première unité de données disponible pour le test et une position d'une seconde unité de données associée à la première unité de données et disponible pour le test, le test étant effectué dans la seconde unité de données, la première unité de données comprenant au moins deux secondes unités de données, et la seconde unité de données est au moins une unité parmi une unité de numéro d'unité d'adresse (AUN), une unité de synchronisation de trame et une unité de secteur.
  11. Procédé selon la revendication 10, comprenant en outre l'étape consistant à :
    reconnaître une taille d'une zone de commande de puissance optimum (OPC) requise pour effectuer le processus de commande de puissance optimum (OPC).
  12. Procédé selon la revendication 10, dans lequel la zone de test est une zone de commande de puissance optimum (OPC).
  13. Procédé selon la revendication 10, dans lequel l'étape b) effectue la commande de puissance optimum (OPC) par une seconde unité de données.
  14. Procédé selon la revendication 11, comprenant en outre :
    l'enregistrement d'une information de position indiquant la prochaine position disponible après l'exécution de la commande de puissance optimum (OPC).
  15. Appareil pour enregistrer des données dans un support d'enregistrement optique inscriptible une seule fois, l'appareil comprend :
    une unité de lecture (11) configurée pour lire des informations de gestion comprenant une information de position stockée dans la zone de gestion, et pour enregistrer des données dans le support d'enregistrement ; et
    un microprocesseur (16) configuré pour effectuer un processus de commande de puissance optimum (OPC) capable de calculer une puissance d'écriture optimum dans une zone de test reconnue par l'information de position, la zone de test étant destinée à tester une puissance d'écriture optimum, et pour commander l'unité de lecture (11) pour enregistrer des données dans le support d'enregistrement sur la base de la puissance d'écriture optimum calculée,
    dans lequel l'information de position indique une position disponible pour le test et comprend une position de début d'une première unité de données disponible pour le test et une position d'une seconde unité de données associée à la première unité de données et disponible pour le test, le test étant effectué dans la seconde unité de données, la première unité de données comprenant au moins deux secondes unités de données, et la seconde unité de données est au moins une unité parmi une unité de numéro d'unité d'adresse (AUN), une unité de synchronisation de trame et une unité de secteur.
  16. Appareil selon la revendication 15, comprenant en outre :
    une mémoire (15) configurée pour stocker temporairement l'information de position lue depuis l'unité de lecture (11).
  17. Appareil selon la revendication 15, dans lequel le microprocesseur (16) est configuré pour reconnaître une taille d'une zone de commande de puissance optimum (OPC) requise pour effectuer le processus de commande de puissance optimum (OPC).
  18. Appareil selon la revendication 15, dans lequel le microprocesseur (16) est configuré pour commander l'unité de lecture (11) pour enregistrer une information de position indiquant la prochaine position disponible après l'exécution de la commande de puissance optimum (OPC).
EP05787113A 2004-09-13 2005-09-12 Support d'enregistrement, procede et appareil pour enregistrer des donnees dans ce support d'enregistrement Not-in-force EP1789961B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US60890004P 2004-09-13 2004-09-13
KR1020050022809A KR101053616B1 (ko) 2004-09-13 2005-03-18 기록매체, 기록매체의 기록방법과 기록장치
PCT/KR2005/003000 WO2006031039A1 (fr) 2004-09-13 2005-09-12 Support d'enregistrement, procede et appareil pour enregistrer des donnees dans ce support d'enregistrement

Publications (2)

Publication Number Publication Date
EP1789961A1 EP1789961A1 (fr) 2007-05-30
EP1789961B1 true EP1789961B1 (fr) 2010-06-16

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ID=36060259

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Application Number Title Priority Date Filing Date
EP05787113A Not-in-force EP1789961B1 (fr) 2004-09-13 2005-09-12 Support d'enregistrement, procede et appareil pour enregistrer des donnees dans ce support d'enregistrement

Country Status (4)

Country Link
EP (1) EP1789961B1 (fr)
JP (1) JP2008512816A (fr)
BR (1) BRPI0515049A (fr)
WO (1) WO2006031039A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001273637A (ja) * 2000-03-28 2001-10-05 Sony Corp 光ディスク及び情報記録方法
JP3855606B2 (ja) * 2000-06-12 2006-12-13 ソニー株式会社 携帯型記録装置及び光記録方法
JP4114767B2 (ja) * 2000-10-13 2008-07-09 パイオニア株式会社 情報記録装置及び情報記録方法
JP2003132538A (ja) * 2001-10-24 2003-05-09 Hitachi-Lg Data Storage Inc 光情報記録装置
JP2003217124A (ja) * 2002-01-24 2003-07-31 Matsushita Electric Ind Co Ltd 光ディスク装置および最適記録パワー取得方法
KR20040009454A (ko) * 2002-07-23 2004-01-31 삼성전자주식회사 광정보 저장매체 및 그 기록방법
TWI294622B (en) * 2002-08-12 2008-03-11 Samsung Electronics Co Ltd Disc with tdds and tdfl, and method and apparatus for managing defect in the same
BRPI0318160B1 (pt) 2003-03-04 2016-05-31 Lg Electronics Inc método para gravação em meio de gravação óptica, aparelho para gravação em e reprodução de um meio de gravação óptica e meio de gravação óptica

Also Published As

Publication number Publication date
JP2008512816A (ja) 2008-04-24
BRPI0515049A (pt) 2008-07-01
EP1789961A1 (fr) 2007-05-30
WO2006031039A1 (fr) 2006-03-23

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